Ratchet-controlled adjuster eor instruments



' Sept. 1, 1925.

. W. BEARD RATCHET CONTROLLED ADJUSTER FORINSTBUMENTS Filed May 24, 1924 nvvnvroR a/WL Patented Sept. 1, 1925.

UNITED STATES PATENT OFFICE.

WILLIAM BEARD, OF COLOR-ADO SPRINGS, COLORADO.

RATCHET- CO'NTROLLED ADJUSTER FOR INSTRUMENTS.

Application filed May 24, 1924. Serial No. 715,545.v

To all whom it may, concern:

Be it known that I, IVILLIAM BEARD, a citizen of the United'States, residing at 1324 North W'ahsatch Avenue, in the city of Colorado Springs, in the county of El Paso andState of Colorado, have invented a new' and useful Improvement in Ratchet-Controlled Adjusters for Instruments, of which the following is a specification.

My invention relates to improvements for adjusters for instruments, such as are adjusted by a lever or screw from a convenient place on an instrument board or on a fixed structure of convenient reach. It applies to such instruments as an oil vent, a carburetter, a water or other fluid vent, as of air, or steam, or an adjustment of a shutter or lid or door, or other aperture closing appliance.

And some of the objects ot' my invention are to provide a ratchet-controlled adjuster for said described instruments and for similar appliances, which willenable the operator to adjust the instrument by adjusting the ratchet back or forth to open or close the appliance or instrument;

I attain these object by means of the mechanism illustrated in the accompanying drawings in which Figure l is a side elevation of the instru ment adjuster shown with its ratchet teeth extending upwardly; Fig. 2, is an underside view of Fig. 1, with the draw bar A attached; Fig. 3, is a side elevation of Fig. 1, with some of the parts removed to show the parts beyond, and shown attached properly to the instrument board D; and Fig. 4 is a top plan View of th adjuster showing the spring G.

Figs. '5 and 6, are enlarged and exaggerated views of guide bar 0 to show the members 1 and 2 of the spring Gr secured in the notches 3 and 4, respectively.

The catch plate E is here shown in Figs. 3, secured to th instrument board D, and the ratchet bar B is shown passing through a provided slot 1 in the catch plate E, and through the provided hole 2, in the instrument board D. The ring end H, of B is provided to receive the thumb and finger or finger of the operator so as to enable him to force the ratchet bar B against the tension of the spring G and release the bar B from its engagement of the catch plate E so that the ratchet bar B may be forced longitudinally to the desired position to force the draw bar A to adjust the instrument to which it is connected.

One of the specific constructions of the appliance is the cutting of two rightangular incisions 1 and 2 in the guide bar G, into which two of the transversely .bent sections 3 and 4' of the spring G are forced and th opening riveted over them.

The longitudinally extending member 5 of the spring G is the resilient part and the rightangularly extending end 6 of the spring G is the part that engages the edge ofthe ratchet bar B and forces it to engage the catch plate E by means of the ratchet catches 7 which are integral with the ratchet bar B, and hold-the engagement until forced by the operator to arelease for the purpose of moving the ratchet bar B longitudinally and thus moving the draw bar A, so as to re adjust the instrument to which it is attached at one end and being actuated by means of the eye F, at the actuating end. The ratchet bar B has its end opposite the ring end I-I,

bent at right angles to the longitudinal stem 'I, containing the ratchet catches 7, and the said bent member J is'provided with a guide hole'through which the guide bar C extends slidably, and the eye F, is secured to said bent member J. The member 6 slides along tightly pressed against the smooth edge of the stem I, and forces it against catch plate E where the teeth 7 engage it.

Having thus described my invention I claim 1. Ina ratchet controlled adjuster for in struments, a catch plate having a longitudinally extending slot and secured to an instrumentboard or other hxture, a gulde bar rigidly secured to said plate and extending at rightangles thereto, a ratchet bar loosely positioned and movable within said slot and provided with ratchet teeth engaging said plate, a bent member at the end of said ratchet bar and provided with a hole through which said guide bar slidably extends, a crooked spring mounted rigidly on said guide bar and slidably on said ratchet bar and adapted to force the latter to engage said catch plate, and means on said bent member for connecting a link or oombinas tion of links with the instrument tobe adjusted.

2. In a ratchet controlled adjusting appliance for instruments, as of a throttle, a guide bar a thrust bar slidably mounted on tit) - said guide bar, and means for connecting said thrust bar Withthe operating member of the instrument to be operated and controlled, a catch-plate through which the said thrust bar passes, ratchet teeth on one edge of said thrust bar positioned to engage said catch-plate, a crooked metal spring rigidly secured in two transverse notches in said guide bar and having one of its in tegral terminal members press against the edge of said thrust bar opposite its edge whereon are said teeth, and provided to force said teeth into locking With said catchplate, substantially as set forth.

3. In a ratchet controlled adjusting ap pliance for adjustable instruments, as a throttle, a guide bar a thrust bar slidably mounted on said guide bar, and having connecting means for connecting the guide end of said thrust bar to the actuating member for adjusting the instrument to be operated and controlled, a. catch p'late through which said guide bar is rigidly secured and through Which said thrust bar is loosely and slidably inserted and thrust, a ring-shaped handle integral With the end of said thrust bar opposite its guide end for the convenient grasping by the hand of the operator, ratchet teeth on one edge of said thrust bar provided and positioned to engage said catch-plate, and a metal spring rigidly secured to two transverse grooves in said guide bar so that its swing end pressed hard against the edge of the swing end of said thrust bar opposite the edge having the teeth and adapted to force said teeth into contact with said catch-plate.

, WILLIAM BEARD. 

